<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
			h1{
				background-color: antiquewhite;
				text-align: center;
				line-height:40px;
				color:red;					
			}
			body{
				height: 800px;
			}
		</style>
	</head>
	<body>
		<h1>我是一个标题</h1>

		
	</body>
</html>